When qigong practitioners have hallucinations, they are also in a special physiological and psychological state-quiet state, or qigong state. This is a state of consciousness that is neither normal awake nor normal sleep. In the transitional state of sleeping and not sleeping, waking and not waking, waking and sleeping. The essence of this state is what psychology calls hypnosis. However, there are important differences between the state of Qigong and the hypnotic state referred to in general psychology: the general hypnotic state is mostly caused by hypnotists using suggestive means, and people who enter the hypnotic state are in a passive position or state; Qigong state refers to that practitioners use self-suggestion to make their consciousness enter a self-hypnosis state on the premise of having a clear purpose (fitness and treatment); The hypnotic state experienced between waking and sleeping during natural sleep is short-lived and uncontrollable; Qigong state means that practitioners deliberately put their consciousness into hypnosis, and artificially control it to stay in this state, so that it neither enters the sleep state nor returns to the awake state.